Through discussing the separationaxiomof topological space, we can get the relation-chain ofseparation axioms. Then the paper lists some examples which are not included in each separation axiom.
通过对拓扑空间上分离公理之间的讨论得出公理关系链，主要给出了各分离公理不能包含的例子。
2
Separationaxiom is one of the important studied content in topology.